Storing thermal energy can save money in a number of different ways. High-cost peak-time power usage is avoided. Also, with stored cooling capacity, the cooling system doesn’t have to cope with the hottest part of the day in real-time. It may be possible to i ns tall a smaller compressor, pumps and pipes. This may help reduce the initial purchase cost and operating and maintenance costs. Some very broad conditions favor thermal energy storage, but it’s not advisable without competent staff to oversee operation. This course offers a description of the various forms thermal energy storage, describes strategies, provides advantages and drawb acks and provides realistic examples and calculations in US Customary and Metric units.